Commit 89ff6005 authored Nov 12, 2020 by Hyeongseok Kim Committed by Jaegeuk Kim Dec 02, 2020

f2fs: fix double free of unicode map



In case of retrying fill_super with skip_recovery,
s_encoding for casefold would not be loaded again even though it's
already been freed because it's not NULL.
Set NULL after free to prevent double freeing when unmount.

Fixes: eca4873e ("f2fs: Use generic casefolding support")
Signed-off-by: Hyeongseok Kim <hyeongseok@gmail.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

parent 34178b1b

fs/f2fs/super.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -3918,6 +3918,7 @@ free_bio_info:

		#ifdef CONFIG_UNICODE
		utf8_unload(sb->s_encoding);
		sb->s_encoding = NULL;
		#endif
		free_options:
		#ifdef CONFIG_QUOTA

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